Cypher: Remove unused addDays/addMonths methods

Author: szarnyasg

cypher/src/main/java/org/ldbcouncil/snb/impls/workloads/cypher/CypherDb.java

@@ -28,25 +28,8 @@
 public class CypherDb extends BaseDb<CypherQueryStore>
 {
 
-    Driver driver;
     CypherQueryStore queryStore;
 
-    static protected Date addDays( Date startDate, int days )
-    {
-        final Calendar cal = Calendar.getInstance();
-        cal.setTime( startDate );
-        cal.add( Calendar.DATE, days );
-        return cal.getTime();
-    }
-
-    static protected Date addMonths( Date startDate, int months )
-    {
-        final Calendar cal = Calendar.getInstance();
-        cal.setTime( startDate );
-        cal.add( Calendar.MONTH, months );
-        return cal.getTime();
-    }
-
     @Override
     protected void onInit( Map<String, String> properties, LoggingService loggingService ) throws DbException
     {

cypher/src/main/java/org/ldbcouncil/snb/impls/workloads/cypher/CypherQueryStore.java

@@ -32,14 +32,6 @@ static protected Date addDays( Date startDate, int days )
         return cal.getTime();
     }
 
-    static protected Date addMonths( Date startDate, int months )
-    {
-        final Calendar cal = Calendar.getInstance();
-        cal.setTime( startDate );
-        cal.add( Calendar.MONTH, months );
-        return cal.getTime();
-    }
-
     /**
      * The maps are overriden here to return maps with Java types
      * instead of strings. This speeds up querying the Cypher instance